Home / 56,256.96-77,636.16-31,107.36

Finding the Fourth Proportional to 56,256.96, 77,636.16 and 31,107.36

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Solution

The fourth proportional to 56,256.96, 77,636.16 and 31,107.36 is: 42,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,256.96 : 77,636.16 = 31,107.36 : x
  2. Step 2: Convert to fraction form
    56,256.96/77,636.16 = 31,107.36/x
  3. Step 3: Cross multiply
    56,256.96x = 77,636.16 × 31,107.36
  4. Step 4: Simplify right side
    56,256.96x = 2,415,055,978.14
  5. Step 5: Solve for x
    x = 2,415,055,978.14/56,256.96
  6. Step 6: Final answer
    x = 42,929.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.